Home / 872,308.80-1,314,400.32-717,998.40

Finding the Fourth Proportional to 872,308.80, 1,314,400.32 and 717,998.40

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Solution

The fourth proportional to 872,308.80, 1,314,400.32 and 717,998.40 is: 1,081,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,308.80 : 1,314,400.32 = 717,998.40 : x
  2. Step 2: Convert to fraction form
    872,308.80/1,314,400.32 = 717,998.40/x
  3. Step 3: Cross multiply
    872,308.80x = 1,314,400.32 × 717,998.40
  4. Step 4: Simplify right side
    872,308.80x = 943,737,326,719.49
  5. Step 5: Solve for x
    x = 943,737,326,719.49/872,308.80
  6. Step 6: Final answer
    x = 1,081,884.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.